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AN2713 Datasheet(PDF) 22 Page - STMicroelectronics

No. de pieza AN2713
Descripción Electrónicos  LNB power supply based on the LNBH23 supply
PDF  40 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2713 Datasheet(HTML) 22 Page - STMicroelectronics

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Layout guidelines
AN2713
22/40
Doc ID 14431 Rev 1
5.1
PCB layout
Any switch mode power supply requires a good PCB layout in order to achieve maximum
performance. Component placement, and GND trace routing and width are the major
issues. Basic rules commonly used for DC-DC converters for good PCB layout should be
followed.
All traces carrying current should be drawn on the PCB as short and as thick as possible.
This should be done to minimize resistive and inductive parasitic effects, and increase
system efficiency.
White arrows indicate the suggested PCB (ring) ground plane to avoid spikes on the output
voltage (this is related to the switching side of the LNBH23). Good soldering of the ePad
helps on this issue.
Figure 12.
STEVAL-CBL003V1 PCB top layer
Figure 13.
STEVAL-CBL003V1 PCB bottom layer
AM01388v1



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